RAAF Gulfstream MC-55A Peregrine
https://www.flightglobal.com/.../australia-to-obtain-four-g550s-equipped-for-ew-miss-...
Australian EW takes a leap forward with the purchase of four MC-55A Peregrine aircraft that will join our P-8A, E-7A, MQ-4C, EA-18 and soon Reaper fleets....
Big move for a modest sized air force...